2000saleen

just picked up a 2000 saleen my 1st mustang, anyway I had the coolant and supercharger flushed then filled and noticed they filled to the top of each tank. So my 1st qeuestion is is it ok to fill the coolant to the top, also where is the overflow hose located I can"t see it? I looked under the car and noticed it was leaking a little coolant and it almost look like it was leaking from a small pump that says oberdorfer pump 12v, unless the overflow hose is above that. I believe that pump is for the supercharger coolant tank. I need help thanks.[:@]